Transformer Protection Relays (Buchholz Principle) - EMB Gmbh
Transformer Protection Relays (Buchholz Principle) - EMB Gmbh
Transformer Protection Relays (Buchholz Principle) - EMB Gmbh
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7.2. Double-float <strong>Buchholz</strong> relays with flanged connection (round)<br />
Type<br />
Internal description<br />
DIN description<br />
05<br />
(BF 25/6)<br />
(-)<br />
06<br />
(BF 25/10)<br />
(DR 25)<br />
23<br />
(BF 25/10 S)<br />
(-)<br />
07<br />
(BF 50/6)<br />
(-)<br />
08<br />
(BF 50/10)<br />
(DR 50)<br />
09<br />
(BF 80/10)<br />
(-)<br />
09-26.<br />
(BF80/10/8)<br />
(DR 80)<br />
24<br />
(BF 80/6)<br />
(-)<br />
Type of connection<br />
Pipe<br />
diameter<br />
DN (mm)<br />
Flange dimensions<br />
(mm)<br />
Device dimensions<br />
(mm) Weight<br />
(kg)<br />
d1 d2 d3 d4 d5 f l h1 h2<br />
Suited for<br />
transformer<br />
ratings of<br />
Flange<br />
4-hole 25 100 75 60 12 12 185 235 90 4,4 ≤5000 KVA<br />
Flange<br />
4-hole 25 115 85 68 14 18 200 235 90 4,8 ≤5000 KVA<br />
Flange<br />
4-hole 25 115 85 68 14 18 200 235 90 4,4 ≤5000 KVA<br />
Flange<br />
4-hole 50 140 110 90 14 12 185 235 80 4,6<br />
Flange<br />
4-hole 50 165 125 102 18 16 195 250 80 5,9<br />
≥5000 KVA<br />
≤10000 KVA<br />
≥5000 KVA<br />
≤10000 KVA<br />
Flange<br />
4-hole 80 200 160 138 18 15 195 265 80 6,2 ≥10000 KVA<br />
Flange<br />
8-hole 80 200 160 138<br />
18<br />
M16<br />
15 195 265 80 6,2 ≥10000 KVA<br />
Flange<br />
4-hole 80 190 150 130 18 15 195 260 80 6,0 ≥10000 KVA<br />
13
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